Skills
Frontend Design · Anthropic
A real SKILL.md for choosing and implementing a deliberate visual direction.
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Anthropic
Web App Testing · Anthropic
A Playwright-based skill with a helper for testing local web applications.
What it does
Use browser interactions and screenshots to investigate a local application. The package includes instructions and a server lifecycle helper; it requires a Python environment with Playwright.
- Reproduce an interaction bug in a local application.
- Capture a browser screenshot and inspect rendered state.
What you need
- Python, Playwright, a browser runtime, and access to the application being checked.
Try it on a real task
Use the webapp-testing skill to check the calculator’s invalid-input flow.
Review notes
- Publisher documentation reviewed on 2026-09-18; runtime installation and model performance were not independently tested.
- The upstream branch can change after review. Check the source before installing.